00620     2200169   4500001002100000005001500021035002000036008004100056082000900097245020400106260002500310300002300335650000900358650001100367650001300378110005900391INLIS00000000000301020220701091500  a0010-0521003010220701                g          0 ind    aNONE1 aBerita Kilat No. 42 Petundjuk pengambilan tjontoh tanah guna pemeriksaan tanah (Landjutan dari "Vlugschrift Algemeen Proefstation der AVROS") /cResearch Institute of The Sumatra Planters Association  aMedan :bAvros,cs.a  a13 p., ill.; 20 cm 4aSOIL 4aSAMPLE 4aRESEARCH0 aRESEARCH INSTITUTE OF THE SUMATRA PLANTERS ASSOCIATION